ESP-Claw is an AI agent framework that runs on Espressif IoT chips and lets people define device behavior through conversation. It handles local sensing, decision-making, and execution for connected devices, with support for event-driven actions, structured memory, and MCP communication.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add espressif/esp-claw --skill bdf_font_convertergit clone --depth 1 https://github.com/espressif/esp-clawWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/espressif/esp-claw/bdf_font_converter)<a href="https://agentmods.dev/skills/espressif/esp-claw/bdf_font_converter"><img src="https://agentmods.dev/badge/skills/espressif/esp-claw/bdf_font_converter/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/espressif/esp-claw/bdf_font_converter"><img src="https://agentmods.dev/badge/skills/espressif/esp-claw/bdf_font_converter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00027 | $0.00324 |
| Opus 5.5 | $0.00011 | $0.00130 |
| Sonnet 5.5 | $0.00005 | $0.00065 |
| Haiku 4.5 | $0.00003 | $0.00032 |
Grade A, and why
bdf_font_converter scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
BDF Font Converter
Use this skill when the user wants to create a display font from BDF source. The input and output paths are relative to the writable DATA root.
Run {CUR_SKILL_DIR}/scripts/bdf_to_dfn.lua once with lua_run_script:
{
"path": "{CUR_SKILL_DIR}/scripts/bdf_to_dfn.lua",
"args": {
"input": "fonts/generated.bdf",
"output": "fonts/generated.dfn",
"overwrite": false
}
}
The converter supports horizontal Unicode BDF 2.1/2.2 fonts with FONT_ASCENT, FONT_DESCENT, ENCODING, DWIDTH, BBX, and 1bpp BITMAP data. Keep glyph dimensions and line height at or below 64 pixels. Unencoded glyphs are skipped. Vertical metrics, legacy encoded character sets, and more than 4096 encoded glyphs are rejected.
Generate BDF with Unicode scalar values in ENCODING. Include a DEFAULT_CHAR property or a glyph encoded as 63 when missing glyph fallback is wanted. If conversion fails, report the exact parser error without retrying with changed paths.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- today First seen · 32 lines · 27 tokens per session scan A 2d61c2698cd2
bdf_font_converter is a skill published in the GitHub repository espressif/esp-claw (2,260 stars, last pushed yesterday), licensed Apache-2.0. It adds 27 tokens to every session and 324 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-20.
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